[INFO] cloning repository https://github.com/dark-flames/derivation-resolver
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/dark-flames/derivation-resolver" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fdark-flames%2Fderivation-resolver", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fdark-flames%2Fderivation-resolver'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 0f1a38c28cae557340cfd724d5b68599de18b99d
[INFO] testing dark-flames/derivation-resolver/0f1a38c28cae557340cfd724d5b68599de18b99d against try#f23b22458132fb20faeb8a915b1c252478696f25 for pr-131095
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fdark-flames%2Fderivation-resolver" "/workspace/builds/worker-0-tc2/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-0-tc2/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/dark-flames/derivation-resolver on toolchain f23b22458132fb20faeb8a915b1c252478696f25
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+f23b22458132fb20faeb8a915b1c252478696f25" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/dark-flames/derivation-resolver
[INFO] finished tweaking git repo https://github.com/dark-flames/derivation-resolver
[INFO] tweaked toml for git repo https://github.com/dark-flames/derivation-resolver written to /workspace/builds/worker-0-tc2/source/Cargo.toml
[INFO] crate git repo https://github.com/dark-flames/derivation-resolver already has a lockfile, it will not be regenerated
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+f23b22458132fb20faeb8a915b1c252478696f25" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded alphabet-macro v0.1.2
[INFO] [stderr]   Downloaded replace_with v0.1.7
[INFO] [stderr]   Downloaded alphabet v0.2.2
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-tc2/source:/opt/rustwide/workdir:ro,Z" "-v" "/var/lib/crater-agent-workspace/cargo-home:/opt/rustwide/cargo-home:ro,Z" "-v" "/var/lib/crater-agent-workspace/rustup-home:/opt/rustwide/rustup-home:ro,Z" "-e" "SOURCE_DIR=/opt/rustwide/workdir" "-e" "CARGO_TARGET_DIR=/opt/rustwide/target" "-e" "CARGO_HOME=/opt/rustwide/cargo-home" "-e" "RUSTUP_HOME=/opt/rustwide/rustup-home" "-w" "/opt/rustwide/workdir" "-m" "1610612736" "--user" "0:0" "--network" "none" "ghcr.io/rust-lang/crates-build-env/linux@sha256:6252d7ea7fb8caaf7af6d800c5fb250a9cd862b9a7f9508afb3c54fa7fe1102e" "/opt/rustwide/cargo-home/bin/cargo" "+f23b22458132fb20faeb8a915b1c252478696f25" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 5c905c7da23ab4601066140f3f69829e248924a23756ebb66f4d9933508b122c
[INFO] running `Command { std: "docker" "start" "-a" "5c905c7da23ab4601066140f3f69829e248924a23756ebb66f4d9933508b122c", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "5c905c7da23ab4601066140f3f69829e248924a23756ebb66f4d9933508b122c", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "5c905c7da23ab4601066140f3f69829e248924a23756ebb66f4d9933508b122c", kill_on_drop: false }`
[INFO] [stdout] 5c905c7da23ab4601066140f3f69829e248924a23756ebb66f4d9933508b122c
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-tc2/source:/opt/rustwide/workdir:ro,Z" "-v" "/var/lib/crater-agent-workspace/cargo-home:/opt/rustwide/cargo-home:ro,Z" "-v" "/var/lib/crater-agent-workspace/rustup-home:/opt/rustwide/rustup-home:ro,Z" "-e" "SOURCE_DIR=/opt/rustwide/workdir" "-e" "CARGO_TARGET_DIR=/opt/rustwide/target" "-e" "CARGO_INCREMENTAL=0" "-e" "RUST_BACKTRACE=full" "-e" "RUSTFLAGS=--cap-lints=forbid" "-e" "RUSTDOCFLAGS=--cap-lints=forbid" "-e" "CARGO_HOME=/opt/rustwide/cargo-home" "-e" "RUSTUP_HOME=/opt/rustwide/rustup-home" "-w" "/opt/rustwide/workdir" "-m" "1610612736" "--user" "0:0" "--network" "none" "ghcr.io/rust-lang/crates-build-env/linux@sha256:6252d7ea7fb8caaf7af6d800c5fb250a9cd862b9a7f9508afb3c54fa7fe1102e" "/opt/rustwide/cargo-home/bin/cargo" "+f23b22458132fb20faeb8a915b1c252478696f25" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 386e4ee71de9497799881362ddb586f2fc8992b8460dc566275e89d7531b45fe
[INFO] running `Command { std: "docker" "start" "-a" "386e4ee71de9497799881362ddb586f2fc8992b8460dc566275e89d7531b45fe", kill_on_drop: false }`
[INFO] [stderr]    Compiling proc-macro2 v1.0.40
[INFO] [stderr]    Compiling quote v1.0.20
[INFO] [stderr]    Compiling unicode-ident v1.0.2
[INFO] [stderr]    Compiling syn v1.0.98
[INFO] [stderr]    Compiling ucd-trie v0.1.4
[INFO] [stderr]    Compiling maplit v1.0.2
[INFO] [stderr]    Compiling more-asserts v0.2.2
[INFO] [stderr]    Compiling replace_with v0.1.7
[INFO] [stderr]    Compiling pest v2.1.3
[INFO] [stderr]    Compiling pest_meta v2.1.3
[INFO] [stderr]    Compiling pest_generator v2.1.3
[INFO] [stderr]    Compiling thiserror-impl v1.0.31
[INFO] [stderr]    Compiling alphabet-macro v0.1.2
[INFO] [stderr]    Compiling pest_derive v2.1.0
[INFO] [stderr]    Compiling alphabet v0.2.2
[INFO] [stderr]    Compiling thiserror v1.0.31
[INFO] [stderr]    Compiling derivation-solver v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] error[E0601]: `main` function not found in crate `derivation_solver`
[INFO] [stdout]   --> src/main.rs:37:2
[INFO] [stdout]    |
[INFO] [stdout] 37 | }
[INFO] [stdout]    |  ^ consider adding a `main` function to `src/main.rs`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] For more information about this error, try `rustc --explain E0601`.
[INFO] [stdout] 
[INFO] [stderr] error: could not compile `derivation-solver` (bin "derivation-solver") due to 1 previous error
[INFO] running `Command { std: "docker" "inspect" "386e4ee71de9497799881362ddb586f2fc8992b8460dc566275e89d7531b45fe", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "386e4ee71de9497799881362ddb586f2fc8992b8460dc566275e89d7531b45fe", kill_on_drop: false }`
[INFO] [stdout] 386e4ee71de9497799881362ddb586f2fc8992b8460dc566275e89d7531b45fe